/// <summary>
/// 高亮显示指定的图元。
/// </summary>
/// <param name="bufferable">一种渲染方式</param>
/// <param name="shaderCodes">各种类型的shader代码</param>
/// <param name="propertyNameMap">关联<see cref="BufferPtr"/>和<see cref="ShaderCode"/>中的属性</param>
/// <param name="positionNameInIBufferable">描述顶点位置信息的buffer的名字</param>
///<param name="switches"></param>
public HighlightRenderer(IBufferable bufferable,
string positionNameInIBufferable,
params GLSwitch[] switches)
: base(bufferable, HighlightShaderHelper.GetHighlightShaderCode(),
new PropertyNameMap("in_Position", positionNameInIBufferable),
switches)
{
this.Name = this.GetType().Name;
this.positionNameInIBufferable = positionNameInIBufferable;
var uniformHighlightColor = new UniformVec4("highlightColor");
//another way: uniform.SetValue(new vec4(1, 1, 1, 1));
uniformHighlightColor.Value = new vec4(1, 1, 1, 1);
this.UniformVariables.Add(uniformHighlightColor);
this.UniformVariables.Add(this.uniformMVP);
var polygonModeSwitch = new PolygonModeSwitch(PolygonModes.Lines);
this.SwitchList.Add(polygonModeSwitch);
var lineWidthSwitch = new LineWidthSwitch(10.0f);
this.SwitchList.Add(lineWidthSwitch);
var pointSizeSwitch = new PointSizeSwitch(20.0f);
this.SwitchList.Add(pointSizeSwitch);
var polygonOffsetSwitch = new PolygonOffsetSwitch(PolugonOffset.Fill, true);
this.SwitchList.Add(polygonOffsetSwitch);
polygonOffsetSwitch = new PolygonOffsetSwitch(PolugonOffset.Point, true);
this.SwitchList.Add(polygonOffsetSwitch);
}
